path-traversal

path-traversal is a skill for Claude Code, Codex from securityfortech/hacking-skills. It costs 118 tokens per session (1,974 once invoked), scanned A, original, no licence file.

A security-testing guide for path traversal and file inclusion, where crafted file paths make an application read or load files outside the intended location.

In plain words
What is it for?
Use it to test web parameters and PHP include or require behavior for local files, remote files, Unix paths, Windows paths and encoded traversal sequences.
Why use it?
It helps uncover unsafe handling of paths in URLs, cookies and hidden fields, including encoding tricks that can evade simple filters.

Skill for Claude CodeCodex

Part of the web plugin — 28 skills shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/securityfortech/hacking-skills/path-traversal
Any agent
npx skills add securityfortech/hacking-skills --skill path-traversal
Clone the repo
git clone --depth 1 https://github.com/securityfortech/hacking-skills

Made for: Claude Code, Codex.

Or install web, the plugin that ships this one along with the rest of its 28 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for path-traversal

README.md
[![agentmods](https://agentmods.dev/badge/skills/securityfortech/hacking-skills/path-traversal.svg)](https://agentmods.dev/skills/securityfortech/hacking-skills/path-traversal)
Your own site
<a href="https://agentmods.dev/skills/securityfortech/hacking-skills/path-traversal"><img src="https://agentmods.dev/badge/skills/securityfortech/hacking-skills/path-traversal.svg" alt="Measured on agentmods" height="20"></a>
Per session 118 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,974 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00118 $0.01974
Opus 5 $0.00059 $0.00987
Sonnet 5 $0.00024 $0.00395
Haiku 4.5 $0.00012 $0.00197

Measured 5d ago against content hash 4bdd80ab2fca, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

path-traversal scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl "https://TARGET/getUserProfile.jsp?item=../../../../etc/passwd"
skills/web/authz/path-traversal/SKILL.md · 156 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 156 lines · 118 tokens per session scan A 4bdd80ab2fca

Subscribe to this mod's changes

path-traversal is a skill published in the GitHub repository securityfortech/hacking-skills (11 stars, last pushed 5mo ago), with no licence file. It adds 118 tokens to every session and 1,974 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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